Oven-thermometer.



No. 645,371. Patented Mar. I3, |900.

R. L. NUURSE.

ovEN THEnMoMETEn.

I'Application led Oct. 10, 1899.)

(No Model.) I

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UNITED STATES PATENT OFFICE.

ROBERT LEE NOURSE, OF HAILEY, IDAHO.

OVEN-THERMOMETER'.

SPECIFICATION forming part of Letters Patent No. 645,371, dated March13, 1900.

Application filed October-l0, 189.9.

To all whom it may concern:

Be it known that I, ROBERT LEE NOURSE, a citizen of the United States,residing at Hailey, in the county of Blaine and State of Idaho, haveinvented certain new and useful Improvements in Oven-Thermometers; and Ido declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to improvements in oven-thermometers for Cookin gpurposes; and the object is to simplify and improve the construction andincrease the efficiency and utility of the device.

To these ends the invention consists in the construction, combination,and arrangement. of the several elements of the device, as will behereinafter more fully described, and particularly pointed out in theclaim.

In the accompanying drawings the same reference characters indicate thesame parts of the device. Y

Figure l is a front elevation of my improved oven-thermometer as itappears on the ovendoor. Fig. 2 is a vertical section through themercury-column. Fig. 3 is a horizontal section on the line 3 3 of Fig.2.

A denotes the oven-door, which is provided with an orifice a for theinsertion of the thermometer-tube and with bolt-holes l) and b' for thereception of the bolts B and B.

2 denotes the sheet-metal case, which is provided with the bolt-holes 222, the orifice 2", and the longitudinal parallel flanges 3 3, whichform the protecting-walls of the groove 4, in which the graduated stemof the therinometer is mounted.

5 denotes a cap or hood which encompasses Serial No. 733,207. (Nomodel.)

the end of the thermometer-tube and is itself held in place by the boltB.

G denotes a curved guard-plate which encompasses the thermometer-bulb toprotect it against injury, and this plate or shield is fixed to theinside of the oven-door by the bolt B.

The body of the case 2 on either side of the ianges 3 3 is provided withan indicatingscale, as shown in Fig. 1, to indicate the propertemperature of the oven at which the various articles of food should becooked.

The accompanying drawings show my invention in the best form now knownto me but many changes in the details might be made within the skill ofa good mechanic without departing from the spirit of my invention as setforth in the claim at the end of this specification.

Having thus fully described my invention, what I claim as new anduseful, and desire to secu re by Letters Patent of the United States,

In combination with the oven-door provided with the orifice, a, andbolt-holes, band ZJ', the casing formed with the bolt-holes, 2 22 and23, and the parallel lianges, 3 3, the thermometer-tube having its bulbarranged on one side of the door and its .graduated stem on the other,the cap, 5, the curved guard-plate, l6, and the bolts, Band B',substantially as shown and described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

ROBERT LEE NOURSE. W'itnesses:

J. J. MCFADDEN, G. WALTMAN STowE.

